Product details
Do what's best for your body with an ECG app for your heart and an EDA sensor for your stress on the most advanced fitness and health tracker.
Smartwatch functions | Alarm clock, Date display, Smart notifications, Timer + stopwatch |
Health functions | Calories, Heart rate measurement, Heart rate monitoring, Pedometer, Sleep recording, Stress levels |
Activities | Cycling, Fitness, Running, Swimming |
Operating system compatibility | Android, iOS |
Wristband material | Silicone |
Case material | Aluminium, Steel |
Item number | 23057121 |
Manufacturer | Fitbit |
Category | Smartwatches |
Manufacturer no. | FB421BKBK-EUBNDL |
Release date | 12.1.2023 |
Exact colour description | Black |
Watch type | Fitness Tracker |
Durability | Waterproof (5 ATM) |
Protection type (IP code) | Waterproof |
Operating system | Fitbit OS |
Operating system compatibility | Android, iOS |
Smartwatch functions | Alarm clock, Date display, Smart notifications, Timer + stopwatch |
Health functions | Calories, Heart rate measurement, Heart rate monitoring, Pedometer, Sleep recording, Stress levels |
Activities | Cycling, Fitness, Running, Swimming |
Sensors | Heart rate sensor, Pulse Oximeter |
Localisation technology | GLONASS, GPS |
Time display | Digital |
Screen technology | AMOLED |
Display size (inches) | 3.96" |
Wristband colour | Black |
Wristband material | Silicone |
Wristband size | One size |
Strap width | 23 mm |
Strap description | Sports bracelet |
Strap fastener | Buckle |
Case colour | Graphite |
Case material | Aluminium, Steel |
Shape of watch | Square |
Case diameter | 26.43 mm |
Case material | Stainless steel |
Connectivity | Bluetooth, NFC |
Bluetooth version | 3.0 |
Power supply | Rechargeable battery operated |
Battery type | Li-ion |
Battery life (without GPS) | 7 days |
Runtime (in GPS mode) | 0.21 days |
Charging time | 2 h |
Battery size | Device specific |
Battery life | 7 days |
CO₂-Emission | |
Climate contribution |
Scope of delivery | White Strap |
Weight | 8 g |
Length | 16 cm |
Width | 15 cm |
Height | 8 cm |
Weight | 260 g |
Specifications may include unverified machine translations.
30-day right of return
24 Months Warranty (Bring-in)
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Smartwatches» category have a defect within the first 24 months?
Source: Digitec Galaxus- 14.Accutime2.8 %
- 15.Brandunit2.9 %
- 15.Fitbit2.9 %
- 17.Suunto3 %
- 17.VTech3 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 16.Xplora2 days
- 18.Coros3 days
- 18.Fitbit3 days
- 18.Polar3 days
- 18.Samsung3 days
Return rate
How often is a product of this brand in the «Smartwatches» category returned?
Source: Digitec Galaxus- 1.Datel1.5 %
- 2.OPPO2.3 %
- 3.Fitbit2.6 %
- 4.CMF3 %
- 4.Wahoo3 %
Source: Digitec Galaxus